﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ChanTai.WebApi.Data
{
    /// <summary>
    /// 数据转换验证
    /// </summary>
    public abstract class ApiCovent
    {
#region 转换
        /// <summary>
        /// 性别
        /// </summary>
        /// <param name="sex"></param>
        /// <returns></returns>
        public string BoolToSex(bool sex)
        {
            return sex ? "1" : "2";
        }
        /// <summary>
        /// 性别
        /// </summary>
        /// <param name="sex"></param>
        /// <returns></returns>
        public string BoolToSexName(bool sex)
        {
            return sex ? "男" : "女";
        }

        /// <summary>
        /// 性别
        /// </summary>
        /// <param name="sex"></param>
        /// <returns></returns>
        public bool SexTo(string sex)
        {
            return sex=="1";
        }
        /// <summary>
        /// 性别
        /// </summary>
        /// <param name="sex"></param>
        /// <returns></returns>
        public string SexNameToSex(string sex)
        {
            return sex== "男" ? "1" : "2";
        }
        /// <summary>
        /// 是否
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public string BoolToStr(bool val)
        {
            return val ? "Y" : "N";
        }

        /// <summary>
        /// 是否
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public bool StrToBool(string val)
        {
            if (val == "Y" || val == "y") return true;
            if (val == "N" || val == "n") return false;
            bool ret;
            return bool.TryParse(val, out ret) && ret;
        }
        /// <summary>
        /// 保留小数位数
        /// </summary>
        /// <param name="val"></param>
        /// <param name="pt"></param>
        /// <returns></returns>
        public double Round(double val, int pt)
        {
            return Math.Round(val, pt);
        }
#endregion

        #region 验证
        /// <summary>  
        /// 验证身份证合理性  
        /// </summary>  
        /// <param name="idNumber"></param>  
        /// <returns></returns>  
        public bool CheckIdCard(string idNumber)
        {
            if (idNumber.Length == 18) return CheckIdCard18(idNumber);
            return idNumber.Length == 15 && CheckIDCard15(idNumber);
        }


        /// <summary>  
        /// 18位身份证号码验证  
        /// </summary>  
        private bool CheckIdCard18(string idNumber)
        {
            long n;
            if (long.TryParse(idNumber.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(idNumber.Replace('x', '0').Replace('X', '0'), out n) == false)
            {
                return false;//数字验证  
            }
            var address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
            if (address.IndexOf(idNumber.Remove(2), StringComparison.Ordinal) == -1)
            {
                return false;//省份验证  
            }
            string birth = idNumber.Substring(6, 8).Insert(6, "-").Insert(4, "-");
            DateTime time;
            if (DateTime.TryParse(birth, out time) == false) return false;//生日验证  
            var arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');
            var wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(',');
            var ai = idNumber.Remove(17).ToCharArray();
            var sum = 0;
            for (var i = 0; i < 17; i++)
            {
                sum += int.Parse(wi[i]) * int.Parse(ai[i].ToString());
            }
            int y;
            Math.DivRem(sum, 11, out y);
            return arrVarifyCode[y] == idNumber.Substring(17, 1).ToLower();
        }


        /// <summary>  
        /// 16位身份证号码验证  
        /// </summary>  
        private bool CheckIDCard15(string idNumber)
        {
            long n = 0;
            if (long.TryParse(idNumber, out n) == false || n < Math.Pow(10, 14))
            {
                return false;//数字验证  
            }
            string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
            if (address.IndexOf(idNumber.Remove(2), StringComparison.Ordinal) == -1)
            {
                return false;//省份验证  
            }
            string birth = idNumber.Substring(6, 6).Insert(4, "-").Insert(2, "-");
            DateTime time;
            return DateTime.TryParse(birth, out time) != false;
        }
        #endregion
#region 解析

        /// <summary>
        /// 获取身份证
        /// </summary>
        /// <param name="idno"></param>
        /// <param name="ck"></param>
        /// <returns></returns>
        public string GetIdNoBirthday(string idno,bool ck=true)
        {
            if (ck&&!CheckIdCard(idno)) return "";
            return idno.Length==18 ? idno.Substring(6, 8).Insert(6, "-").Insert(4, "-") : idno.Substring(6, 6).Insert(4, "-").Insert(2, "-");
        }

        /// <summary>
        /// 获取
        /// </summary>
        /// <param name="idno"></param>
        /// <param name="ck"></param>
        /// <returns></returns>
        public string GetInNoSex(string idno, bool ck = true)
        {
            if (ck && !CheckIdCard(idno)) return "";
            var sex = int.Parse(idno.Substring(idno.Length == 18 ? 14:12, 3));
            return sex%2 == 0 ? "1" : "2";

        }
#endregion
    }
}
